DE1000718B - Practice bullet for recoilless firearms - Google Patents

Description

There are υ bungsgeschosise known front size, shape and weight of ^one sharp one for recoilless solvent firearms. Bullet: with a tubular, bucket-shaped lock for a small-caliber barrel, which · a; Slidable Scfalaghammer for the firing pin 'contains.

The invention relates to a training projectile of this type, which differs from the previous versions differs according to the invention in that the lock at its rear open end as Storage for a propellant provided with ignition means, the gas pressure of which is provided by the hammer propels the firing pin. Another feature is seen in the fact that the hammer consists of a cylinder in front of which a buffer spring is provided and behind which a stop sleeve sits.

In this way it is achieved that the bang and the recoiling flame at the shooter; the combat-like Get used to the conditions and serve as a firearm for the gun. The gas pressure of the Charge causes the firing pin against; The primer in the chamber of the barrel was like this hits hard so that the ball leaves the barrel. That Practice bullet, on the other hand, should remain in the weapon and not be driven forward.

The drawing shows an example of the subject matter of the invention in

Fig. Ι a schematic representation of an axial section of the floor, in

Fig. 2 shows an axial section of the central part of the projectile on a larger scale. This corresponds to the in Fig. Ι lying between the planes I and II part, but is shorter in scale than this, in

FIG. 3 shows a particularly expedient embodiment of the front end of the one illustrated in FIG Lock and in

Fig. 4 shows this front part seen from the front. The training projectile according to Fig. Ι consists of a projectile body with an axially continuous ¹ edge and various Eimsatzteile. The projectile body consists of the head 1, an intermediate tube 6 and a tail part 12. A submachine gun barrel 2 is fastened in the head 1. Behind this an annular sleeve 5 is inserted in the intermediate tube 6 of the projectile body, which forms the chamber for a small-caliber cartridge. It connects the barrel 2 with the lock ¹ 7 behind it. This is attached to the front end of a tube 9 at its threaded end 19, which extends behind the opening of the projectile at the rear. A firing pin 8 is slidably mounted in the lock. In the tube 9 an axially displaceable percussion hammer 10 is used, and behind this is located; a propellant charge 11 with

Training bullet for recoilless
Firearms

Applicant: Nils Olov Malmström,
Stockholm

Representative: M. Dörner, patent attorney,
Munich 27, Ismaninger Str. 94

Claimed priority:
Sweden from December 1, 1953

Nils Olov Malmström, Stockholm,
has been named as the inventor

Zündpiile and electrical ignition wires 14 and 15, of which wire 14 to a contact terminal 13 on Tail part of this projectile is connected.

Fig. 2 shows the individual parts of this construction. The small-caliber barrel 2 is provided with a Flemish 4, which is clamped between a fastening ring 34 arranged on the head 1 and the sleeve 5. The latter is fastened with a number of screws 35 in the intermediate tube 6 of this projectile. The lock 7 is coupled to the sleeve 5 with a thread 18 and has an annular end face which rests against an attachment surface 17 in the sleeve. The front of the lock has a retaining flange 16 for a cartridge. The firing pin 8 is outside the lock with a flange 20 and buckets' mach behind; directed pin 21 provided .. In the tube 9, a tube 23 is attached, whose; Front edge, in the shape of a collar directed towards Kirnen, the backward movement of the Flemish 20 and thus of the firing pin. In this pipe the impact hammer 10 is set eimn, the two Füh ⁱ rungsbumide25, a front-facing do pin 24 and a rear extension 26 bears. The rearward displacement of this ski hammer is limited by the front face of an insert tube 27. Between the 'collar of the tube 23 behind the firing pin and the hammer, a buffer spring 22 is attached, which is attached to the pins 21 and 24 on the impact or the Scfalaghammer.

A projectile according to the invention is ^{assembled 1} in the following way. After sliding a cartridge onto the; Holding flange 16, the tube 9 with the lock is pushed into the projectile body from behind. Turning the tube opens the lock

locked on the sleeve 5. Thereupon, d'ie propellant charge 11 used. The ignition wire 14 is then attached to the contact element 13.

The shooting is done in the same way as with Use of sharp · bullets. After shooting, the training bullet is removed unscrewed the tube 23 with the connected parts and the remaining cartridge case removed. When shooting are expedient Use at least two training bullets for each weapon.

Since the percussion hammer 10 has a relatively large mass and a relatively powerful one Buffer spring 22 is used, you get a certain delay of the shot, as it is also the case with Shooting with normal missile maiition is. The one shown However, the trigger device can also be designed differently. The firing pin and the For example, percussion hammers can be assembled and a buffer spring between the flange 20 of the firing pin and the lock, However, this requires other dimensions for the insert tube with its parts.

TJm to prevent the propellant charge 11 from falling out or is too close to the rear opening of the projectile when firing, is in this Opening to insert a closure body, which is easily pushed out or broken through by the propellant gases can be.

3 and 4 show a device with a cartridge holder, which is the case in the embodiment described particularly suitable for a quick release of the cartridge case. In Fig. 3 the front part of the The lock 7 is designed as a pin 28 on which a sleeve 30 is fastened by means of a screw 32. the Wall of the sleeve for this screw is with a

Longitudinal groove3i provided, which has such a length that the case can be advanced enough so that the back of the cartridge base is in front of the Tip of the firing pin 8 is located. The sleeve is formed at the rear with a flange 33, which when locked of the lock is brought to bear against the attachment surface 17 on the sleeve 5 and thereby the sleeve 30 presses in its rearmost position on the pin 28 so that the firing pin against the cartridge beat, can. Fig. 4 shows how the retaining flange for the cartridge case is arranged for its introduction and execution.

Claims (2)

Patent claims 1. Training projectile for recoilless firearms, the size, shape and weight of a sharp projectile, with a tubular lock for a small-caliber barrel, the one sliding one SdMaghamtner for the firing pin, thereby, characterized in that the lock (9) at its rear open end al® bearing for one with ignition means provided propellant charge (11) is used, the gas pressure of which by means of the hammer (10) the firing pin! (8) advances. 2. Projectile according to claim 1, characterized in that the saw hammer (10) consists of a cylinder, in front of which a buffer spring (22) is provided and behind which a ^{stop 1} is seated. Considered publications:
German Patent No. 867 367;
Austrian Patent No. 149446;
French Patent No. 1,069,983;
U.S. Patent No. 2,645,999. 1 sheet of drawings © 609 740/77 12.56